A Bala Vingadora

William Boyd

as Hopalong Cassidy

Andy Clyde

as California Carlson

Rand Brooks

as Lucky Jenkins

Dorinda Clifton

as Susan Crowell

Harry Cording

as Riker

Mary Newton

as Mrs. Crowell

Ian Wolfe

as Edwin "Deacon" Black

Earle Hodgins

as County Clerk Tom

Richard Bailey

as Lead Worker-Henchman (Oil Drillman)

Richard Alexander

as Smitty, hefty worker-henchman

Leo J. McMahon

as Burly Worker-Henchman with Torch